@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  /* Ocean Blue & Cyan palette */
  --primary: #0ea5e9;
  --primary-dark: #0284c7;
  --primary-light: #38bdf8;
  --accent: #06b6d4;
  --surface: #ffffff;
  --surface2: #f0f9ff;
  --surface3: #e0f2fe;
  --text-1: #0f172a;
  --text-2: #334155;
  --text-3: #64748b;
  --text-4: #94a3b8;
  --border: #e2e8f0;
  --danger: #ef4444;
  --danger-light: #fef2f2;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --radius: 16px;
  --radius-sm: 10px;
  --t: 0.2s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text-1);
  background: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 50%, #14b8a6 100%);
  -webkit-font-smoothing: antialiased;
}

.login-page {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  overflow: hidden;
}

/* Animated background shapes */
.login-page::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  top: -200px;
  right: -150px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

.login-page::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  bottom: -100px;
  left: -100px;
  background: rgba(255,255,255,0.06);
  border-radius: 50%;
  animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(20px, -20px) rotate(5deg); }
  50% { transform: translate(-10px, 10px) rotate(-5deg); }
  75% { transform: translate(15px, 5px) rotate(3deg); }
}

.login-shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1100px;
  display: grid;
  grid-template-columns: 1fr 440px;
  background: var(--surface);
  border-radius: 24px;
  box-shadow: var(--shadow-xl), 0 0 0 1px rgba(255,255,255,0.1);
  overflow: hidden;
  animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Left Panel - Showcase */
.login-showcase-panel {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  padding: 48px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.login-showcase-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.page-brand {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
  position: relative;
  z-index: 1;
}

.page-brand-logo {
  width: 60px;
  height: 60px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.15);
  border-radius: 14px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  overflow: hidden;
}

.page-brand-logo img {
  width: 70px;
  height: 70px;
  object-fit: contain;
  border-radius: 8px;
}

.page-brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-brand-kicker {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
}

.page-brand-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
}

.page-brand-sub {
  display: none;
}

.login-stage {
  display: contents;
}

.login-showcase {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.showcase-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 8px 14px;
  background: rgba(255,255,255,0.15);
  border-radius: 100px;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  backdrop-filter: blur(10px);
  margin-bottom: 20px;
}

.showcase-title {
  margin: 0 0 16px;
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #fff;
}

.showcase-copy {
  margin: 0 0 32px;
  color: rgba(255,255,255,0.8);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 400px;
}

.showcase-highlights {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.showcase-highlight {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: rgba(255,255,255,0.1);
  border-radius: 12px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  transition: all var(--t);
}

.showcase-highlight:hover {
  background: rgba(255,255,255,0.15);
  transform: translateX(4px);
}

.showcase-highlight i {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.2);
  border-radius: 10px;
  color: #fff;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.showcase-highlight-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.highlight-title {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
}

.highlight-copy {
  margin: 0;
  color: rgba(255,255,255,0.7);
  font-size: 0.82rem;
  line-height: 1.5;
}

/* Right Panel - Login Form */
.login-form-wrap {
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--surface);
}

.login-form-wrap::before,
.login-form-wrap::after {
  display: none;
}

.login-form-head {
  margin-bottom: 32px;
  text-align: center;
}

.login-form-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  padding: 6px 12px;
  background: linear-gradient(135deg, rgba(14,165,233,0.1), rgba(6,182,212,0.1));
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.03em;
}

.login-form-title {
  margin: 0 0 8px;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-1);
  letter-spacing: -0.02em;
}

.login-form-sub {
  margin: 0;
  color: var(--text-3);
  font-size: 0.9rem;
  line-height: 1.5;
}

.error-msg {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  padding: 12px 16px;
  background: var(--danger-light);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--danger);
  color: var(--danger);
  font-size: 0.88rem;
  font-weight: 500;
}

.error-msg i {
  font-size: 1rem;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-2);
  font-size: 0.85rem;
  font-weight: 600;
}

.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 16px;
  color: var(--text-4);
  font-size: 1rem;
  transition: color var(--t);
  z-index: 1;
}

.input-wrap:focus-within .input-icon {
  color: var(--primary);
}

.form-input {
  width: 100%;
  height: 52px;
  padding: 0 16px 0 48px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface2);
  color: var(--text-1);
  font: inherit;
  font-size: 0.95rem;
  transition: all var(--t);
}

.form-input::placeholder {
  color: var(--text-4);
}

.form-input:hover {
  border-color: var(--text-4);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--surface);
  box-shadow: 0 0 0 4px rgba(14,165,233,0.15);
}

.remember-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 4px 0 24px;
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-3);
  font-size: 0.88rem;
  cursor: pointer;
}

.checkbox-label input {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

.forgot {
  color: var(--primary);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--t);
}

.forgot:hover {
  color: var(--primary-dark);
}

.btn-login {
  width: 100%;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(14,165,233,0.4);
  transition: all var(--t);
  position: relative;
  overflow: hidden;
}

.btn-login::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--t);
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(14,165,233,0.5);
}

.btn-login:hover::before {
  opacity: 1;
}

.btn-login:active {
  transform: translateY(0);
}

.btn-login i {
  transition: transform var(--t);
}

.btn-login:hover i {
  transform: translateX(4px);
}

.login-assist {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-3);
  font-size: 0.82rem;
}

.login-assist i {
  color: var(--accent);
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════ */
@media (max-width: 920px) {
  .login-shell {
    grid-template-columns: 1fr;
    max-width: 480px;
  }

  .login-showcase-panel {
    display: none;
  }

  .page-brand {
    display: flex;
    justify-content: center;
    margin-bottom: 0;
    padding: 24px;
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  }

  .page-brand-title {
    color: #fff;
  }

  .page-brand-kicker {
    color: rgba(255,255,255,0.8);
  }

  .login-form-wrap {
    padding: 32px 28px 40px;
  }
}

@media (max-width: 500px) {
  .login-page {
    padding: 16px;
    align-items: flex-start;
    padding-top: 40px;
  }

  .login-shell {
    border-radius: 20px;
  }

  .page-brand {
    padding: 20px;
    gap: 12px;
  }

  .page-brand-logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
  }

  .page-brand-logo img {
    width: 34px;
    height: 34px;
  }

  .page-brand-title {
    font-size: 1.25rem;
  }

  .login-form-wrap {
    padding: 24px 20px 32px;
  }

  .login-form-title {
    font-size: 1.5rem;
  }

  .form-input {
    height: 48px;
    font-size: 0.9rem;
  }

  .btn-login {
    height: 48px;
    font-size: 0.95rem;
  }

  .remember-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}